Before doing serious work with these four analog noise reducers, I thought I should get to know them properly with some lab tests. Read more
Category: Radio Frequency Interference
Worst Case Wideband RFI Reduction
All 4 of my test units attacked worst case wideband RFI successfully, but the performance of the cheap X-Phase really blew me away! Read more
RFI Cable Cleanup with TinySA
TinySA is a perfect tool for RFI cable cleanup. Make sure your supposedly shielded coaxial cables running between antennas and radio receivers are actually shielded.
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Analog Noise Reduction Showdown
Dreams come true. I have been able to assemble four leading analog noise reduction products for comparison, real world and lab testing. Read more
Wideband RFI Sniffer Very Useful
You can use your TinySA spectrum Analyzer as a close-in wideband RFI sniffer to check performance of how badly consumer electronics gear interferes with radio listening. Read more
X-Phase Performance on Shortwave
So, what’s the verdict on X-Phase performance for reducing RFI during shortwave listening? Pretty good, actually, for something so cheap and cheerful. Read more
Wiring My X-Phase RFI Fighter
Wiring my X-Phase QRM Eliminator kit was fairly easy, but here are a few things to keep in mind if you build one of these. Read more
Assembling My RA0SMS X-Phase QRM Eliminator
I finally got around to assembling my RA0SMS X-Phase QRM Eliminator kit which arrived from Russia last month. Here’s the story. Read more
RFI Spectrum Hunter Loop
By combining TinySA with my direction finder, I may be able to create a lightweight RFI spectrum hunter loop. Just the ticket for tracking down noisy neighbors. Read more
Path Dependent RFI Tools – Use Them All
Path dependent RFI tools include ferrite chokes, power line filters and noise cancellers. Using these can make all the difference between listening to signals and listening to interference. Read more